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parisc: fix ipv6 checksum
ipv6 recently started exhibiting the same symptoms as ipv4 was, add a memory clobber around inline checksum assembly that fribbles memory to ensure gcc doesn't erroneously cache across it. Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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@ -182,7 +182,7 @@ static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
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#endif
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: "=r" (sum), "=r" (saddr), "=r" (daddr), "=r" (len)
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: "0" (sum), "1" (saddr), "2" (daddr), "3" (len), "r" (proto)
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: "r19", "r20", "r21", "r22");
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: "r19", "r20", "r21", "r22", "memory");
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return csum_fold(sum);
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}
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